Ross has made pio\u00adneer\u00ading con\u00adtri\u00adbu\u00adtions to the chem\u00adistry and engi\u00adneer\u00ading of cat\u00adalyt\u00adic process\u00ades. Ear\u00adly in his career with his advi\u00adsor Michel Boudart, he devel\u00adoped an exper\u00adi\u00admen\u00adtal method to address arti\u00adfacts in kinet\u00adic data; a test accept\u00aded today as being defin\u00adi\u00adtive for kinet\u00adic con\u00adtrol in catal\u00ady\u00adsis. At Exxon, Ross\u2019 stud\u00adies in Fis\u00adch\u00ader-Trop\u00adsch syn\u00adthe\u00adsis demon\u00adstrat\u00aded the cru\u00adcial role intra\u00adparti\u00adcle dif\u00adfu\u00adsion played in enhanc\u00ading hydro\u00adcar\u00adbon chain length and in chang\u00ading selec\u00adtiv\u00adi\u00adty. At Engel\u00adhard, he devel\u00adoped impor\u00adtant con\u00adcepts in flu\u00adid cat\u00adalyt\u00adic crack\u00ading to help design com\u00admer\u00adcial cat\u00ada\u00adlysts. He elu\u00adci\u00addat\u00aded the mech\u00ada\u00adnism by which vana\u00addi\u00adum caus\u00ades struc\u00adtur\u00adal degra\u00adda\u00adtion of Y zeo\u00adlite in FCC cat\u00ada\u00adlysts, and used this under\u00adstand\u00ading to min\u00adi\u00admize its dele\u00adte\u00adri\u00adous effect. His stud\u00adies pro\u00advid\u00aded a def\u00adi\u00adnite assess\u00adment of the role of ZSM-5 addi\u00adtives in FCC to form light olefins and high octane gaso\u00adline. And, he defined the crit\u00adi\u00adcal role rare earth cations play in Y-based FCC cat\u00ada\u00adlysts, demon\u00adstrat\u00ading how the pres\u00adence of rare earth influ\u00adences hydride trans\u00adfer reac\u00adtions and prod\u00aduct selec\u00adtiv\u00adi\u00adty in FCC. Most recent\u00adly, at BASF, Ross, togeth\u00ader with col\u00adleagues in acad\u00ade\u00admia, elu\u00adci\u00addat\u00aded the mech\u00ada\u00adnism of the water gas shift reac\u00adtion on cop\u00adper, evinc\u00ading para\u00adme\u00adters that could sig\u00adnif\u00adi\u00adcant\u00adly improve cat\u00adalyt\u00adic activ\u00adi\u00adty. Impor\u00adtant\u00adly, though, Ross has used his con\u00adcep\u00adtu\u00adal and mech\u00ada\u00adnis\u00adtic approach to cat\u00ada\u00adlyst research to design com\u00admer\u00adcial cat\u00ada\u00adlysts. He is the coin\u00adven\u00adtor and devel\u00adop\u00ader of the Redux\u00adion \u2013 Max\u00adol\u00ae fam\u00adi\u00adly of FCC cat\u00ada\u00adlysts and of the Iso\u00adPlus\u00ae and Ultri\u00adum\u00ae fam\u00adi\u00adlies; all of which have been used com\u00admer\u00adcial\u00adly world\u00adwide. He coin\u00advent\u00aded the Flex-Tec\u00ae resid crack\u00ading cat\u00ada\u00adlyst which has been wide\u00adly and suc\u00adcess\u00adful\u00adly deployed in demand\u00ading resid cat-crack\u00ading process\u00ades. And most recent\u00adly he has devel\u00adoped sev\u00ader\u00adal cop\u00adper based cat\u00ada\u00adlysts for the petro\u00adchem\u00adi\u00adcal indus\u00adtry. <\/p>\n Ross chaired the 1996 Gor\u00addon Research Con\u00adfer\u00adence on Catal\u00ady\u00adsis, and in 2009 was award\u00aded the AIChE Catal\u00ady\u00adsis and Reac\u00adtion Engi\u00adneer\u00ading Divi\u00adsion Prac\u00adtice Award.<\/p>\n","protected":false},"excerpt":{"rendered":" Mee\u00adtimg Pro\u00adgram \u2014 Sep\u00adtem\u00adber 2012 Ros\u00adtam J. Madon BASF Cor\u00adpo\u00adra\u00adtion 25 Middlesex\/Essex Turn\u00adpike Iselin, NJ, USA 08830 rostam.\u200bmadon@\u200bbasf.\u200bcom Abstract \u2014 Low tem\u00adper\u00ada\u00adture water gas shift (LTS) is a com\u00admer\u00adcial\u00adly impor\u00adtant reac\u00adtion that takes place over a Cu-ZnO-Al2O3 cat\u00ada\u00adlyst. A large num\u00adber of fun\u00adda\u00admen\u00adtal stud\u00adies have been car\u00adried out for this reac\u00adtion includ\u00ading inves\u00adti\u00adga\u00adtions [\u2026]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[15,13],"tags":[],"class_list":["post-3109","post","type-post","status-publish","format-standard","hentry","category-abstracts","category-meetings"],"_links":{"self":[{"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/3109","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/comments?post=3109"}],"version-history":[{"count":9,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/3109\/revisions"}],"predecessor-version":[{"id":3312,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/3109\/revisions\/3312"}],"wp:attachment":[{"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/media?parent=3109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/categories?post=3109"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/tags?post=3109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nRos\u00adtam J. Madon<\/strong>
\nBASF Cor\u00adpo\u00adra\u00adtion
\n25 Middlesex\/Essex Turn\u00adpike
\nIselin, NJ, USA 08830
\nrostam.\u200bmadon@\u200bbasf.\u200bcom<\/em>
\n
\nAbstract<\/strong> \u2014 Low tem\u00adper\u00ada\u00adture water gas shift (LTS) is a com\u00admer\u00adcial\u00adly impor\u00adtant reac\u00adtion that takes place over a Cu-ZnO-Al2<\/sub>O3<\/sub> cat\u00ada\u00adlyst. A large num\u00adber of fun\u00adda\u00admen\u00adtal stud\u00adies have been car\u00adried out for this reac\u00adtion includ\u00ading inves\u00adti\u00adga\u00adtions of the reac\u00adtion mech\u00ada\u00adnism as typ\u00adi\u00adfied by Refs. [1\u20134]. In short, dis\u00adcus\u00adsions have cen\u00adtered around (a) the redox mech\u00ada\u00adnism in which adsorbed H2<\/sub>O is dis\u00adso\u00adci\u00adat\u00aded to O* and OH* and the O* is removed via CO* to form CO2<\/sub> \u2013 where * is an active site, and (b) for\u00admate as a reac\u00adtive inter\u00adme\u00addi\u00adate. Recent\u00adly, Gokhale et al. [5] using a DFT inves\u00adti\u00adga\u00adtion of the LTS reac\u00adtion on Cu(111) pro\u00adposed a new mech\u00ada\u00adnism that involves a reac\u00adtive sur\u00adface car\u00adboxyl. Our study is aimed at resolv\u00ading which ele\u00admen\u00adtary steps best describe the cat\u00adalyt\u00adic cycle for the LTS reac\u00adtion. To achieve this, we used the micro\u00adki\u00adnet\u00adic mod\u00adel\u00ading method\u00adol\u00ado\u00adgy pio\u00adneered by Dumesic [6], and ana\u00adlyzed our reac\u00adtiv\u00adi\u00adty data using all ele\u00admen\u00adtary steps, includ\u00ading those that described the redox mech\u00ada\u00adnism, the for\u00admate mech\u00ada\u00adnism, and the car\u00adboxyl mech\u00ada\u00adnism. Thus, we ensured that there was no bias towards any par\u00adtic\u00adu\u00adlar reac\u00adtions to fit our data. We found the closed cat\u00adalyt\u00adic cycle for LTS on Cu con\u00adsists of eight ele\u00admen\u00adtary steps that include the for\u00adma\u00adtion of COOH*, and its reac\u00adtion with OH* to form CO2<\/sub>* and H2<\/sub>O*. The cycle does not include the reac\u00adtion of CO2<\/sub>* and H* to form sur\u00adface for\u00admate. How\u00adev\u00ader, this is an impor\u00adtant side reac\u00adtion, which ensures sig\u00adnif\u00adi\u00adcant cov\u00ader\u00adage of biden\u00adtate for\u00admate species on the Cu sur\u00adface. Biden\u00adtate for\u00admate is a spec\u00adta\u00adtor species whose cov\u00ader\u00adage increas\u00ades with increas\u00ading pres\u00adsure and decreas\u00ades with increas\u00ading tem\u00adper\u00ada\u00adture. In sum\u00adma\u00adry, our inves\u00adti\u00adga\u00adtion demon\u00adstrates that the redox and for\u00admate mech\u00ada\u00adnisms are not rel\u00ade\u00advant, and that the LTS cat\u00adalyt\u00adic cycle involves the for\u00adma\u00adtion and reac\u00adtion of sur\u00adface car\u00adboxyl. Sev\u00ader\u00adal relat\u00aded aspects of the LTS reac\u00adtion on Cu will also be dis\u00adcussed.
\n <\/p>\nReferences<\/h3>\n
\n
\nSpeak\u00ader Bio<\/strong> \u2014 Ross com\u00adplet\u00aded his under\u00adgrad\u00adu\u00adate stud\u00adies in chem\u00adi\u00adcal engi\u00adneer\u00ading at the Uni\u00adver\u00adsi\u00adty Depart\u00adment of Chem\u00adi\u00adcal Tech\u00adnol\u00ado\u00adgy, Mum\u00adbai, India. He did his grad\u00adu\u00adate work at Stan\u00adford Uni\u00adver\u00adsi\u00adty, obtain\u00ading his Ph.D. under the guid\u00adance of Pro\u00adfes\u00adsor Michel Boudart. After com\u00adplet\u00ading his post-doc\u00adtor\u00adal work with Pro\u00adfes\u00adsor W. Kei\u00adth Hall at the Uni\u00adver\u00adsi\u00adty of Wis\u00adcon\u00adsin \u2014 Mil\u00adwau\u00adkee, Ross joined Exxon Research and Engi\u00adneer\u00ading Com\u00adpa\u00adny. After 12 years with Exxon\u2019s Cor\u00adpo\u00adrate Research Lab\u00ado\u00adra\u00adto\u00adries, Ross joined Engel\u00adhard Cor\u00adpo\u00adra\u00adtion. Ross recent\u00adly com\u00adplet\u00aded 25 years at Engelhard\/BASF Cor\u00adpo\u00adra\u00adtion where he is cur\u00adrent\u00adly a Senior Research Asso\u00adciate.<\/p>\n